Android Java-Google LocationRequest和LocationManager的问题

如何解决Android Java-Google LocationRequest和LocationManager的问题

（编辑：修复了LocationManager更新，，但是使用Google Api对话框启用GPS后，我仍然始终在onActivityResult中得到RESULT_FAILED。）

任何人都可以告诉我为什么如果我使用Google Api对话框启用GPS以及手动启用GPS，LocationManager位置更新为什么会停止工作？谢谢！

还有为什么我在使用Google Api对话框启用GPS（并正确启用GPS）后总是在onActivityReturn中得到RESULT_FAILED？

我需要一些有关此问题的信息和帮助。

我做了一个utils类，以使用Google Dialog启用gps高精度：

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="css/layout.css">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <title>Grafiek</title>
    <style>
        .red{
          background-color:red;
         }
         .blue{
          background-color:blue;
         }        
         .green{
          background-color:green;
         }

    </style>
</head>
<body>
<h1>Server Stats</h1>
<div id="maindiv">
    <div id="server1" class="serverstatus">
        <h3>(servername1)</h3>
        <div>
            Status:
        </div>

        <br>
        <div>
            Last Checked:
        </div>
        <div>
            Last Online:
        </div>
        <div>
            <button onclick="toggleStatus('server1','red')">yes</button>
        </div>
    </div>

    <div id="server2" class="serverstatus">
        <h3>(servername2)</h3>
        <div>
            Status:
        </div>
        <br>
        <div>
            Last Checked:
        </div>
        <div>
            Last Online:
        </div>
        <div>
            <button onclick="toggleStatus('server2','green')">yes</button>
        </div>
    </div>

    <div id="server3" class="serverstatus">
        <h3>(servername3)</h3>
        <div>
            Status:
        </div>
        <br>
        <div>
            Last Checked:
        </div>
        <div>
            Last Online:
        </div>
        <div>
            <button onclick="toggleStatus('server3','blue')">yes</button>
        </div>
    </div>
</div>

</body>
</html>

我还尝试将此类更改为：

public class EnableLocationCallback implements OnCompleteListener<LocationSettingsResponse> {

    // Millis Interval
    private static final long MILLIS_FASTEST_INTERVAL = 1000L;
    private static final long MILLIS_INTERVAL = MILLIS_FASTEST_INTERVAL * 0xA;

    private Activity mActivity;
    private int mRequestCode;

    public static void requestEnableLocation(Activity activity,int requestCode){
        new EnableLocationCallback(activity,requestCode).requestEnableLocation();
    }

    private EnableLocationCallback(Activity activity,int requestCode){
        mActivity = activity;
        mRequestCode = requestCode;
    }

    /** Override OnCompleteListener<LocationSettingsResponse> Methods **/
    @Override
    public void onComplete(@NonNull Task<LocationSettingsResponse> task) {
        try {
            task.getResult(ApiException.class);
        } catch (ApiException ex){
            switch (ex.getStatusCode()){
                case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                    try {
                        ((ResolvableApiException) ex).startResolutionForResult(mActivity,mRequestCode);
                    } catch (IntentSender.SendIntentException e) {
                        openGpsEnabledSettings();
                    }
                    break;
                case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                    openGpsEnabledSettings();
                    break;
            }
        }
    }

    /** Private Methods **/
    private void requestEnableLocation(){
        getSettingsClient(mActivity)
                .checkLocationSettings(getLocationSettingsRequest())
                .addOnCompleteListener(this);
    }

    private LocationRequest getLocationRequest(){
        return LocationRequest.create()
                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                .setInterval(MILLIS_INTERVAL)
                .setFastestInterval(MILLIS_FASTEST_INTERVAL);
    }

    private LocationSettingsRequest getLocationSettingsRequest(){
        return new LocationSettingsRequest.Builder()
                .addLocationRequest(getLocationRequest())
                .setAlwaysShow(true)
                .build();
    }

    private void openGpsEnabledSettings(){
        mActivity.startActivityForResult(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS),mRequestCode);
    }

}

在两种情况下，我都启用了GPS，但GPS启用了“高精度”启用，但是... 在我的活动“ onActivityResult”上，我总是得到resultCode == -0x1（如此失败）。

我还看到，在开始使用此代码后，我正在使用此代码进行位置更新的所有零件（单个更新或多个）：

public class EnableLocationCallback implements
        GoogleApiClient.ConnectionCallbacks,GoogleApiClient.OnConnectionFailedListener {

    // Millis Interval
    private static final long MILLIS_FASTEST_INTERVAL = Constants.MILLIS_ONE_SECOND * 0x5;
    private static final long MILLIS_INTERVAL = Constants.TIMEOUT_GET_POSITION;

    private GoogleApiClient mGoogleApiClient;
    private Activity mActivity;
    private int mRequestCode;

    public static void requestEnableLocation(Activity activity,int requestCode){
        EnableLocationCallback instance = new EnableLocationCallback(activity,requestCode);
        instance.initGoogleApiClient();
        instance.initLocationSettingResultCallback();
    }

    private EnableLocationCallback(Activity activity,int requestCode){
        mActivity = activity;
        mRequestCode = requestCode;
    }

    /** Override GoogleApiClient.ConnectionCallbacks Methods **/
    @Override
    public void onConnected(@Nullable Bundle bundle) {

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    /** Override GoogleApiClient.OnConnectionFailedListener Methods **/
    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    /** Private Methods **/
    private void initGoogleApiClient(){
        mGoogleApiClient = new GoogleApiClient.Builder(mActivity)
                .addApi(LocationServices.API)
                .addConnectionCallbacks(this)
                .build();
        mGoogleApiClient.connect();
    }

    private void initLocationSettingResultCallback(){
        LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient,getLocationSettingsRequest()).setResultCallback(
                result -> {
                    final Status status = result.getStatus();
                    final LocationSettingsStates state = result.getLocationSettingsStates();
                    switch (status.getStatusCode()) {
                        case LocationSettingsStatusCodes.SUCCESS:
                            break;
                        case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                            try {
                                status.startResolutionForResult(mActivity,mRequestCode);
                            } catch (IntentSender.SendIntentException e) {
                                openGpsEnabledSettings();
                            }
                            break;
                        case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                            openGpsEnabledSettings();
                            break;
                    }
                }
        );
    }

    private void requestEnableLocation(){
        getSettingsClient(mActivity)
                .checkLocationSettings(getLocationSettingsRequest());
    }

    private LocationRequest getLocationRequest(){
        return LocationRequest.create()
                .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
                .setInterval(MILLIS_INTERVAL)
                .setFastestInterval(MILLIS_FASTEST_INTERVAL);
    }

    private LocationSettingsRequest getLocationSettingsRequest(){
        return new LocationSettingsRequest.Builder()
                .addLocationRequest(getLocationRequest())
                .setAlwaysShow(true)
                .build();
    }

    private void openGpsEnabledSettings(){
        mActivity.startActivityForResult(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS),mRequestCode);
    }

}

所有这些部分停止工作。我使用gps更新对话框无法启用GPS，如果我手动启用它也将无法使用！

您能解释一下并告诉我如何解决吗？

我还将希望看到有关“ Google SettingsClient”，“ GoogleApi ”的漂亮文档和用法示例。我搜索了但没有找到任何好的文档。

例如... google页面仅告诉您一些信息，我没有告诉您扩展类后应该传递给超级构造函数的东西，以及许多其他事情：/

非常感谢您，祝您编码愉快，并祝您愉快：D

#EDIT：我通过使用“ FusedLocationManager”和正确的LocationListener进行位置更新来修复了LocationManager更新。 但是在使用对话框正确启用GPS后，我仍然总是会得到RESULT_FAILED。 我现在的课程是：

mLocationManager.requestSingleUpdate(LocationManager.GPS_PROVIDER,mUserPositionListener,null);

我从这里使用@Janishar Ali的答案来改善我的课程： Janishar Ali Answer Link

Android Java-Google LocationRequest和LocationManager的问题

如何解决Android Java-Google LocationRequest和LocationManager的问题

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